| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1974 |
|
The World of Null-A | Sphere | Novel | |
| August 1976 |
|
The World of Null-A | Sphere | Novel | |
| 1980 |
|
The World of Null-A | Sphere | Novel | |
| September 1981 |
|
The World of Null-A | Sphere | Novel | |
| 1985 |
|
The World of Null-A | Sphere Books | Novel | |
| March 1986 | The World of Null-A | Sphere | Novel |